baber/WOPTO huggingface dataset:
Patent GB-267669-A (GB)
Title: Improved means for securing railway rails to sleepers
IPC: E01B9/32
Filed: 1926-02-02
Abstract: 267,669. Percival, B. Feb. 2, 1926. Sleepers, securing rails to; chairs, securing to sleepers ; chairs with adjustable jaws.-Rails a are secured to chairs c or sleepers b by reversible clips d, e the clips and chairs or sleepers having coacting inclined wedging surfaces. The clips have on each face a rail groove g and projection h spaced differently on the two faces. The projections engage recesses i, Fig .1, in the chairs or lugs i<2>, Fig. 4, bent down from the sleepers. For a small change of gauge, one or both sets of clips are reversed. For a greater change, the securing bolts f are inserted into a different set of holes in the sleeper.
Patent GB-470002-A (GB)
Title: Improvements in and relating to wireless and like receivers
IPC: H03D7/18
Filed: 1936-01-31
Abstract: 470,002. Transformers. LE MARCHANT, P. A. Jan. 31, 1936, No. 3049. [Class 38 (ii)] [Also in Group XL] In a superheterodyne wireless receiver, a band-pass filter 1, 2 is coupled by a circuit 3, 9 resonant above the tuning range and a circuit 11, 12 resonant below the tuning range. A coil 10 in the aerial circuit is coupled to both coils 9, 11 in the opposite sense so that loss of signal energy on the shorter wavelengths is prevented. The Specification gives details of the coil structure 9 10, 11. Specification 412,253 is referred to.
Patent GB-321122-A (GB)
Title: Improvements in, or relating to, percussive tools
IPC: B25D9/24
Filed: 1929-01-29
Abstract: 321,122. Rayner, G. H. T., and Rayner, P. Jan. 29, 1929. Percussive tools.-In order to reduce cushioning in a hammer drill the passage e admitting pressure fluid to the front end of the cylinder opens thereinto by way of two ports o, n, the former being a small port constantly open and the latter a larger port which is not opened until the piston has moved some distance on its return stroke. The distributing valve may be of the rocking type as shown, with cylinder exhaust ports p, q, or a distributing valve may be used constructed as described in Specification 100,524, [Class 122 (ii), Steam engine distributing and expansion valves &c.], wherein the exhaust from the front end of the cylinder escapes by the inlet passage e under the control of the valve.
Patent GB-228899-A (GB)
IPC: B07B1/20
Filed: 1925-02-03
Abstract: 228,899. Manificat, E. Feb. 6, 1924, [Convention date]. Preliminary treatment of materials. - In separating dust from fibrous materials such as straw and the like which is to be used for the preparation of paper pulp, the material is fed through a pipe 17 to a perforated cylindrical casing 22 in which rotates a cylinder 4 carrying helical vanes. These feed the material through the casing towards the outlet 19 and loosen the dust which is sucked away down hoppers 11 by a fan 13. Adjustable openings at the ends 15, 16 regulate the admission of air. At the end of t'he operation, the material is sucked out of the apparatus down the pipe 19 by a fan 20. A modification is described in which the material is fed upwards in a vertical direction to the casing 22.
Patent GB-764635-A (GB)
Title: Improvements in or relating to photographic enlarger apparatus
IPC: G03B27/56
Filed: 1955-02-02
Abstract: 764,635. Photographic enlargers. HAAS, R. N., MYERS, H. H., and SCHWANHAUSSER, W. E., [trading as BESELER CO.; C.]. Feb. 2, 1955 [Sept. 1, 1954], No. 3073/55. Class 98(1) A baseboard supports a frame affording a pair of guide elements, a carriage member is mounted for reciprocation along the guide elements by means of driving connection therewith, and an enlarger head is mounted on and movable with the car riage member and is slidable along the carriage member and rockable thereon for use in either vertical or horizontal position. No counterbalancing weight or spring for the enlarger head is required. As described in connection with drawings the frame 11 affording guide elements 12, 13 is forwardly inclined on the baseboard 10 and further supported thereon by strut elements 14, 15; and a carriage member 23 constituted by a pair of parallel tubes 25, 26 connected togetherby brackets 27, 28 carries driving means 24, normally electrically operated, by which a shaft (Figs. 3-7, not shown) in the tube 26 extending through the brackets 27, 28 drives pinions to engage the teeth of racks in the guide elements 12, 13 for upward or downward movement of the carriage member 23. Such member carries also an enlarger head frame 20<SP>1</SP> rockable on its upper tube 25 and engaging by either end on the lower tube 26 according to whether the enlarger head 20 with bellows 21 and lamp house 22 carried by such frame 20<SP>1</SP> is used in the vertical or the horizontal position.
Patent GB-934793-A (GB)
Title: Improvements in and relating to apparatus for driving moving elements
IPC: B01F13/08
Filed: 1960-01-28
Abstract: 934,793. Mixing under pressure. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. Jan. 28, 1960 [Jan. 30, 1959], No. 3109/60. Class 86. [Also in Group XXXIV In an autoclave or reactor the stirrer 4 is carried on a shaft 3 supported in bearings 7 and driven by a motor 1, both motor and bearings being housed in a chamber 8 containing lubricant and continuous with the cover of the pressure vessel 5. The shaft 3 is sealed by a slide ring seal 18 and has vanes 17 for circulating the lubricant through a heat-exchanger 15. Pressure in the process space and the lubricant chamber is equalized by the floating piston 9. In a modification, the seal 18 is a soft seal and the piston 9 is loaded by a spring 14 to give an excess pressure of ¢-1 atm. in the lubricant chamber, additional lubricant being supplied under pressure to replace loss through the seal 18. The piston 9 may have a tapered groove cooperating with a discharge pipe to limit the rise in pressure. In another embodiment, Fig. II, the upper part of the shaft 3 is hollow and forms the lubricant chamber 8, being supported by bearings 7 on a coaxial stationary shaft 21; an annular floating piston 9 is provided to equalize the pressures as before. A heatexchange medium may be circulated through the channels 25 and the hollow interior 22 of the stationary shaft 21; a replenishment or cooling pipe for the lubricant may also pass through the shaft 21.
Patent GB-489772-A (GB)
Title: Improvements in electrical signalling systems
IPC: H02J13/00
Filed: 1937-02-03
Abstract: 489,772. Electric signalling systems. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd., and ROSEBY, P. N. Feb. 3, 1937, No. 3234. [Class 40 (i)] In a system for signalling or control by high frequencies over power conductors in which the responding devices are connected in circuit with rectifiers, means are provided to prevent damage to the rectifiers due to excess of signalling current. As shown in the drawing the device comprises a transformer TR with the windings P, S, side by side on an iron core designed so that the output of the secondary remains practically constant after the primary current has exceeded a certain value. The primary circuit is and the secondary circuit may be tuned by condensers to the signalling frequency and the secondary feeds the control relay SR through a full wave rectifier bridge. Specifications 441,020, [Group XXXIX], and 444,698 are referred to.
Patent GB-174943-A (GB)
Title: Improvements in the manufacture of six throw crank shafts
IPC: B21K1/08
Filed: 1922-02-03
Abstract: 174,943. Poldih³tte [Firm of] Feb. 3, 1921, [Convention date]. Forging-dies.-Six-throw cranks are forged between dies with one pair of cranks at right-angles to the pressure and with fins or webs a, b, between all the cranks so as to equalize surplus metal during forging and prevent distortion during annealing &c. The fins at one side are in one' plane c, and at the other follow the simple line d.
Patent GB-1031542-A (GB)
Title: Photographic heat-sensitive materials
Inventor: WHITEAR BRIAN RONALD DAVID
IPC: G03C1/52
Filed: 1964-01-24
Abstract: The invention comprises compounds of the general formula <FORM:1031542/C2/1> wherein R1 and R3 are aryl or substituted aryl groups and R2 is methyl or ethyl or is a group A-N(SO2R3)N = N-R1 where A is a divalent hydrocarbon radical and R1 and R3 have the meanings defined above.  Preferred values of R1 and R3 are phenyl, naphthyl and tolyl groups which may be substituted by nitro, amino- N-substituted amino, sulphonic, alkyl, alkoxy, hydroxyalkyl, alkylthio, aralkylthio; arylthio or aryloxy groups. Preferably R1 is substituted ortho to the azo link.  They are prepared by reacting a diazonium salt of the general formula <FORM:1031542/C2/2> wherein R1 is defined as above and X is an anion with a compound of the general formula <FORM:1031542/C2/3> wherein R2 and R3 are as defined above in aqueous alkaline solution.  Examples 12, 21, 13 and 23 refer to products containing chlorine or bromine.  Many examples are given.
Patent GB-216911-A (GB)
Title: Improvements in bituminous and like compositions
IPC: C08L95/00
Filed: 1923-02-05
Abstract: Mineral matter is dispersed by high speed disintegration in a bituminous or oily medium, substantially without water; generally, a medium comprising a mixture of aromatic hydrocarbons and paraffins proves more satisfactory.  A protective colloid may be added.  A suitable composition consists of six parts of petroleum bitumen (mexphalt), 6 parts of coal tar creasote, and 2-6 parts of dried clay, treated for one minute in a colloid mill.  This composition can be thinned with creosote.  With an increased amount of bitumen, precipitation may take place.  According to the Provisional Specification, a suitable composition consists of 8 lbs. of tar, 4 lbs. of limestone, 250 cc. of water and 50 grams of a 10 per cent caustic soda solution, to which petroleum pitch may be added as a protective colloid.  The compositions are useful in road-making.
Patent GB-347712-A (GB)
Title: Improved means for supporting lavatory basins, sinks, slabs and other articles
IPC: E03C1/32
Filed: 1930-02-01
Abstract: 347,712. Brackets. REYNOLDS, E. F., 6, Fawcett Lane, Lower Wortley, and LEEDS FIRECLAY CO., Ltd., 65, Wortley Moor Road, Wortley, both in Leeds. Feb. 1, 1930, No. 3453. [Class 52 (v).] A supporting means for lavatory basins, sinks, slabs, and the like, comprises an arm a, Fig. 1, adapted to be fixed on or in a wall at one end, and carrying, at the other end, a tapered plug or socket b to coact with a tapered socket or plug on a supporting leg. The arm may be fixed to the wall by a plug h, by a plate c and pins, or by a plate and plug, and the plate may be formed with a short forwardly projecting shelf e to support the rear of the basin or other article. The plate may be connected to the underside of the arm by a web, fin, or rod f. The arm may be depressed between its ends to form a towel rail and may be curved or straight. Legs may be provided with two or more sockets q, Figs. 16 and 17, to receive one or more cross rails, in addition to an arm.
Patent GB-354168-A (GB)
Title: Improvements in or relating to folding spectacles
IPC: G02C5/00
Filed: 1930-02-01
Abstract: 354,168. Spectacles. WINGATE, G. H., 15, Wigmore Street, London. Feb. 1, 1930, No. 3477. Convention date, March 26, 1929. [Class 97 (i).] Foldable spectacles are constructed with eyeframes 1, 2 pivoted to the bridge 5, which is preferably slightly springy, the forks 3, 4 of the bridge being slightly offset so that the frames 1, 2 may fold completely one over the other. Abutments 6 on the frames bear upon the bridge to limit the opening movement and extended portions 9 rest upon the nose of the wearer. The sides 7 are each formed of two members 71, 711 hinged together so that the spectacles may be folded into the position shown in Fig. 3. The hinge 12 is in a different plane to that of the hinge 11 to facilitate folding. To avoid wear at the pivots 3, 4 the pins pass through metal bushings in the eyeframes 1, 2.
Patent GB-411222-A (GB)
Title: Improvements relating to babies' comforters
IPC: A61J17/00
Filed: 1933-02-04
Abstract: 411,222. Baby soothers. WOOLF, B., 513, Bristol Road, Bournbrook, Birming- ham. Feb. 4, 1933, No. 3492. [Class 81 (ii).] Baby soothers, comprise a bone or other stem b inserted into a rubber or like teat a, and an annular shield f which cooperates, to hold the teat, with a tapered portion e on the stem extending from a groove d, and are characterized in that the larger end of the tapered portion e is of larger diameter than the part c of the stem lying forward of the groove. Specification 18201/08, [Class 81], is referred to.
Patent GB-688343-A (GB)
Title: Water-soluble condensation products
IPC: C14C3/20
Filed: 1951-02-13
Abstract: Water-soluble condensation products, useful as synthetic tanning agents, are manufactured by condensing a mixture of isomeric phenol monosulphonic acids and isomeric phenoldisulphonic acids (e.g. a sulphonation product of phenol or a cresol or mixtures thereof) at a temperature above 100 DEG  C. (preferably 140-160 DEG  C.) under reduced pressure, and then effecting sulphone formation by heating the resulting condensation product, at about 140-170 DEG  C. under reduced pressure, with an added phenol, e.g. phenol itself (which requires temperatures in the upper part of the said range) or resorcinol or a naphthol (for which temperatures in the lower part of the range suffice).  In examples: (1) phenol is sulphonated at 110 DEG  C. with removal of the water liberated, the resulting sulphonic acids are condensed at 145-150 DEG  C. under 20 mm. pressure with removal of water and unchanged phenol, and the product is heated with additional phenol at 160-170 DEG  C. under 15 mm. pressure; the final product may be neutralized with ammonia; (2) the phenol in the last stage of (1) is replaced by b -naphthol and the condensation carried out at 140-145 DEG  C. under 15-20 mm. pressure.
Patent GB-247220-A (GB)
Title: Improvements in or relating to motor vehicles having two or more pairs of driven rear wheels
IPC: B60K17/24
Filed: 1926-02-08
Abstract: 247,220. Koprivnickß Vozovkß Akc. Spol. Feb. 7, 1925, [Convention date]. Equalizing load on wheels and springs.- Vehicles having two or more pairs of driving rear wheels are provided with a. central frame member 1, which has a rigid extension 10 to the rearmost wheels and on which the axle casings 4, 40 swivel in transverse vertical planes, the wheels being driven through a rigid propeller shaft 2 passing through the central frame member and driving axle shafts 7 through bevel gearing 6. Springs 8 are pivoted at 11 on a frame and their ends rest on the axle casings 4, 10.
Patent GB-1209082-A (GB)
Title: Telescopic zoom optical system
Inventor: WEHR CLYDE WILLIAM
IPC: G02B23/14
Filed: 1968-01-23
Abstract: 1,209,082. Optical apparatus. EASTMAN KODAK CO. Jan.23, 1968 [Jan. 24, 1967], No.3561/68. Heading G2J. A zoom view-finder has an objective consisting of a fixed negative front component I, movable positive middle component II and rear fixed positive component III, an erector IV and eye-piece, the erector IV having at least a portion thereof, (as shown the whole component) which is coupled to the component II for unitary movement therewith, the powers and distances of the components being such that the real image formed at mask 16 and viewed by the eye-piece remains substantially stationary during zooming movement. Optical data are provided for the example shown, for another example in which the stop 14 moves with element 4 and for a third example Fig. 2 (not shown) in which the stop moves with the erector and a fixed collector is inserted between the objective and erector and between the latter and the mask respectively. The movable members may be attached to a slide (20) Fig. 5 (not shown) which is coupled to the mechanism (21-27) operating the zoom objective of a camera on which the view-finder is mounted, the element (4) being capable of vertical and horizontal centering by means of an eccentric (17) and vertical pivot (29) respectively.
Patent GB-686117-A (GB)
Title: Improvements in and relating to the production of artificial filaments, threads, fibres, bands and the like
Inventor: CARPENTER ALBERT STANLEY
IPC: D01F4/00
Filed: 1950-02-13
Abstract: Protein threads, after a hardening treatment with an aldehyde, either alone or in conjunction with an acid or one or more salts, are treated with a solution of an alkali metal compound which has a pH value greater than 7.0, to convert the protein into an alkali metal proteinate, and the threads are then treated with an epoxy compound. The latter is preferably epichlorhydrin, but may be glycidol, hydroquinone bisglycidyl ether or resorcinol bis-glycidyl ether.  The alkali metal compound may be a hydroxide, carbonate, bicarbonate, cyanate, or acetate.  In the example milk casein threads hardened with formaldehyde are immersed in aqueous one per cent sodium carbonate solution, excess solution is pressed out and the threads are heated with epichlorhydrin in a closed vessel at 65 DEG  C. so that the vapour of the epichlorhydrin permeates the threads.  The treatment reduces the water-absorbing tendencies of the threads and also improves their fastness to washing with soap solution after having been dyed with a dispersed dye.  Specifications 463,043 and 644,213 are referred to.
Patent GB-524692-A (GB)
Title: Improvements in or relating to machines for treating textile material
IPC: D06B5/00
Filed: 1939-02-03
Abstract: 524,692. Treating textile materials &c. with liquids. CASSE, M. Feb. 3, 1939, No. 3616. Convention date, Feb. 9, 1938. [Class 15 (i)] Apparatus for treating textile materials and articles with liquids, in which a propeller in the base of a vat circulates the liquid either way through a central tube, is provided with means whereby different tubes and other fittings may be used for varying treatments. The propeller 10, Fig. 1, is driven by a shaft 9 proiecting through the base of the vat, and the central tube 24 is removably mounted on a ring 11 supported by arms 12. A perforated, false bottom 21 is also removably fixed to the ring 11 and to an outer ring 5 to which the side of the vat is secured. As shown, a deflector 35 and perforated plate 32 are carried by a central rod 28 removably fixed to an arm 25. Fig. 2 shows a form in which a conical deflector 42 and a perforated cone 44, with a perforated, cylindrical extension 45, slide in the tube 24. In a variation of this form a number of concentric deflectors are provided. The central tube may be perforated and fitted with fixed and removable flanges between which a length of material is wound, the tube being closed at the top.
Patent GB-1512173-A (GB)
Title: Process for the production of oligomeric alkylene benzene dicarboxylate
IPC: C08G63/00
Filed: 1976-01-29
Abstract: 1512173 Oligomeric alkylene benzene dicarboxylates DYNAMIT NOBEL AG 29 Jan 1976 [1 Feb 1975] 03649/76 Heading C2C [Also in Divisions C3 and B1] An oligomeric alkylene benzene dicarboxylate is obtained by introducing a dialkyl benzene dicarboxylate and a diol in a molar ratio of from 1 : 1À1 to 1 : 1À5 into an upper chamber of a multi-chamber column reactor which comprises a plurality of chambers arranged vertically one above the other each communicating with the chamber or chambers thereadjacent catalytically effecting transesterification of the dialkyl benzene dicarboxylate as the reaction mixture from said upper chamber passes through a plurality of the chambers at a temperature rising from chamber to chamber and at a pressure equal to the ambient pressure or having a higher value, to yield a transesterification product which is passed to a further chamber to undergo condensation therein while diol evolved is driven off, which further chamber is at a temperature higher than any in which transesterification has occurred and at subambient pressure, condensation being effected in said further chamber until an oligomer having an average degree of condensation of from 2 to 20 is obtained and discharging the oligomer obtained from said further chamber. A specified dialkyl benzene dicarboxylate is dimethyl terephthalate and a specified diol is butane-1,4-diol. Preferred transesterification temperatures are in the range from 130 to 245 C. and preferred condensation temperatures are in the range from 180 to 250 C. An apparatus for carrying out the process is described.
Patent GB-800857-A (GB)
Title: Process for the manufacture of amino-triaryl-carbinols and triaryl-methane dyestuffs
IPC: C09B11/20
Filed: 1955-02-08
Abstract: Triarylcarbinols free from amino groups and containing in at least one of the aryl residues a halogen atom parato the carbinol carbon, are obtained by conversion of triaryl-halogen methanes which are obtained by condensing aryl trihalogen methanes with aryl compounds in the molecular ratio 1 : 2 in the presence of aluminium chloride or iron chloride and hydrogen chloride, which last may be formed from the aluminium or iron chloride by addition of a little water or by exposure to air, either the aryl-trihalogen-methane containing halogen para to the trihalomethyl methyl group, or the aryl compound containing halogen para to hydrogen or both.  The temperature may be 80-100- C., and conversion of the triaryl-halogen-methane to the triarylcarbinol may be effected by pouring into water or on to ice. Examples describe the preparation of (1) tri-(p-chlorphenyl) carbinol from p-chlorbenzotrichloride and chlorbenzene; (2) p-chlorphenyl - di - (p - bromophenyl)-carbinol from p-chlorbenzotrichloride and bromobenzene; (3) phenyl-di-p-bromo- or chlorophenyl)-carbinol from benzotrichloride and bromobenzene or chlorbenzene; (4) diphenyl-p-chlorphenyl-carbinol from p-chlorbenzotrichloride and benzene; (5) p-chlorphenyl-di-(p-methylphenyl)-carbinol from p-chlorbenzotrichloride and toluene.ALSO:Triarylmethane dye bases, which are amino- or arylamino-triaryl-carbinols, are obtained by reacting with ammonia or a primary arylamine a triarylcarbinol which is free from amino groups and in which at least one aryl residue contains a halogen atom para to the carbinol carbon atom (see Group IV (b)).  The reaction may be conducted in aqueous medium at e.g. 140-220 DEG  C., in presence of copper or a copper compound.  The products are often resinous, but may be worked up by dissolution in moderately concentrated sulphuric acid and reprecitation with ammonia, or resinification may be avoided by reacting in presence of e.g. kieselguhr or active carbon.  The products are converted by acids to the dyestuffs, which inter alia dye polyacrylonitrile fibres, and reserve wool fibres.  They may be used in aqueous solution or dispersion.  In examples, aqueous ammonia is reacted with (1) tri-(p-chlorophenyl) carbinol, (2) p - chlorphenyl - di - (p - bromophenyl) - carbinol, (3) phenyl - di - (p - chlorphenyl) carbinol, (4) phenyl - di - (p - bromophenyl) carbinol, (5) diphenyl - p - chlorphenyl-carbinol, (6) p - chlorphenyl - di - (p - methylphenyl) carbinol.  Also in examples, (7) tri-(p-chlorphenyl) carbinol is reacted with aniline or a -naphthylamine.  A dyeing example with an acetic acid bath and polyacrylonitrile fibres is given.
Patent GB-363543-A (GB)
Title: Improvements in devices for intimately mixing, churning or agitating liquid substances
IPC: A47J43/10
Filed: 1931-02-06
Abstract: 363,543. Egg whisks &c. ROBINSON, J., 56, Addison Gardens, Kensington, and THOMPSON, J. H., 14, Rostrevor Mansions, Fulham, both in London. Feb. 6, 1931, No. 3819. [Class 86.] A device for intimately mixing, churning, or agitating liquid substances, such as an egg whisk, comprises a cylindrical vessel of metal, glass, or other suitable material, formed in two main parts, a body 1 of tubular formation and a removable flat cap 2 adapted to fit closely within or around the end of the vessel, and a plunger formed by a perforated plate 5 secured on the end of a solid rod 6. According to a modification, the lower end of the body 1 may be screw threaded to receive a cap. When in use, and it is desired to remove the plunger and the converted product, the plate 5 being at the bottom of the vessel, the cap is removed from the bottom of the vessel.